From Longman Dictionary of Contemporary English Related topics:Physicsspec‧tral/ˈspektrəl/adjective1literaryrelating to or like aspectre2technicalrelating to or made by aspectrum Examples from the Corpus spectral•These are allsimulatedspectralandconcentrationdata.•They are members of theVspect...
We review the recent developmentsleading to the discovery of their physical meaning, consequences, andgeneralizations. In particular, we give a simple definition of spectralsingularities, provide a general introduction to spectral consequences of${\\cal PT}$-symmetry (clarifying some of the ...
noun , Physics. a series of lines in the spectrum of light emitted by excited atoms of an element, each line being related to the others in the series by a simple numerical equation and identified with a particular energy level of an atom of the element....
Physics of Spectral Singularities 来自 Springer 喜欢 0 阅读量: 76 作者: A Mostafazadeh 摘要: Spectral singularities are certain points of the continuous spectrum ofgeneric complex scattering potentials. We review the recent developmentsleading to the discovery of their physical meaning, consequences, ...
The results showed that the obtained eigenvectors had a clearer physical meaning than those derived from PCA and had significant correspondence with pores. Sign in to download hi-res image Fig. 9. Flow diagram of feature extraction based on LLE-WPT [58]. Based on the online detection of ...
The problem concerning the thermal emission of a body, is related with the meaning of “Blackbody”. This is defined as a body capable of absorbing all the incident radiation, whatever its wave length is. The spectral emission of a Blackbody dR(L,T)/dL, that is the power radiated per su...
This question has been present all along in the development of the relation between noncommutative geometry and physics with the long term goal of finding testable models of quantum gravity from truncated versions of the model given by quanta of geometry in [16,17]. It has been clear from the...
Etalon is from the French étalon, meaning "measuring gauge" or "standard". Etalons are widely used intelecommunications, lasers and spectroscopy to control and measure the wavelengths of light. Recent advances in fabrication technique allow the creation of very precise tunable Fabry–Pérot interferom...
Combined with optical amplifier technology, this has led some industry analysts to proclaim “the death of distance,” meaning connection distances should no longer pose a serious limitation in optical network design. However, in many real-world applications, it is not sufficient to simply extend a...
For this illumination scheme, some objects (e.g., textiles, plastic pellets, and food) may exhibit directionality, meaning that the instrument readings will vary as the object is rotated about the normal, in the plane of the object. In this case, bidirectional, or even better, ...